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Configuring 2 Network adapters

Anonymous
2014-10-09T18:56:49+00:00

Hello,

           I am currently dealing with  adding a new computer to a office. This new computer is win 7 pro based and  has an on board NIC as well as a wireless NIC installed. The Wired NIC is configured with the information to connect to a private network with no internet access and the wireless is configured for DHCP to access the internet. Each NIC works  as intended as long as the other NIC is disabled, as soon as i enable both NICs the wired connection goes dead. 

here is the route and IPconfig info

Microsoft Windows [Version 6.1.7601]

Copyright (c) 2009 Microsoft Corporation.  All rights reserved.

C:\Users\Boyle Reg>route print

===========================================================================

Interface List

 13...1c 7e e5 cb 59 75 ......D-Link DWA-525 Wireless N 150 Desktop Adapter

 10...1c 6f 65 04 dd 6f ......Intel(R) 82567LM-3 Gigabit Network Connection

  1...........................Software Loopback Interface 1

 16...00 00 00 00 00 00 00 e0 Microsoft ISATAP Adapter

 11...00 00 00 00 00 00 00 e0 Microsoft 6to4 Adapter

 12...00 00 00 00 00 00 00 e0 Teredo Tunneling Pseudo-Interface

 15...00 00 00 00 00 00 00 e0 Microsoft ISATAP Adapter #2

===========================================================================

IPv4 Route Table

===========================================================================

Active Routes:

Network Destination        Netmask          Gateway       Interface  Metric

          0.0.0.0          0.0.0.0    192.168.1.254     192.168.1.65     26

          0.0.0.0          0.0.0.0    142.149.65.65    142.149.65.68    276

        127.0.0.0        255.0.0.0         On-link         127.0.0.1    306

        127.0.0.1  255.255.255.255         On-link         127.0.0.1    306

  127.255.255.255  255.255.255.255         On-link         127.0.0.1    306

    142.149.65.64  255.255.255.240         On-link     142.149.65.68    276

    142.149.65.68  255.255.255.255         On-link     142.149.65.68    276

    142.149.65.79  255.255.255.255         On-link     142.149.65.68    276

      192.168.1.0    255.255.255.0         On-link      192.168.1.65    281

     192.168.1.65  255.255.255.255         On-link      192.168.1.65    281

    192.168.1.255  255.255.255.255         On-link      192.168.1.65    281

        224.0.0.0        240.0.0.0         On-link         127.0.0.1    306

        224.0.0.0        240.0.0.0         On-link      192.168.1.65    281

        224.0.0.0        240.0.0.0         On-link     142.149.65.68    276

  255.255.255.255  255.255.255.255         On-link         127.0.0.1    306

  255.255.255.255  255.255.255.255         On-link      192.168.1.65    281

  255.255.255.255  255.255.255.255         On-link     142.149.65.68    276

===========================================================================

Persistent Routes:

  Network Address          Netmask  Gateway Address  Metric

          0.0.0.0          0.0.0.0    142.149.65.65  Default

===========================================================================

IPv6 Route Table

===========================================================================

Active Routes:

 If Metric Network Destination      Gateway

  1    306 ::1/128                  On-link

 12     58 2001::/32                On-link

 12    306 2001:0:5ef5:79fb:3ced:21fd:3f57:febe/128

                                    On-link

 11   1025 2002::/16                On-link

 11    281 2002:8e95:4144::8e95:4144/128

                                    On-link

 13    281 fe80::/64                On-link

 10    276 fe80::/64                On-link

 12    306 fe80::/64                On-link

 12    306 fe80::3ced:21fd:3f57:febe/128

                                    On-link

 13    281 fe80::44f4:559d:e7bd:ea4d/128

                                    On-link

 10    276 fe80::847f:d4a:2173:b499/128

                                    On-link

  1    306 ff00::/8                 On-link

 12    306 ff00::/8                 On-link

 13    281 ff00::/8                 On-link

 10    276 ff00::/8                 On-link

===========================================================================

Persistent Routes:

  None

C:\Users\Boyle Reg>ipconfig /all

Windows IP Configuration

   Host Name . . . . . . . . . . . . : DerkosM58-2

   Primary Dns Suffix  . . . . . . . :

   Node Type . . . . . . . . . . . . : Hybrid

   IP Routing Enabled. . . . . . . . : No

   WINS Proxy Enabled. . . . . . . . : No

   DNS Suffix Search List. . . . . . : telus

Wireless LAN adapter Wireless Network Connection:

   Connection-specific DNS Suffix  . : telus

   Description . . . . . . . . . . . : D-Link DWA-525 Wireless N 150 Desktop Ada

pter

   Physical Address. . . . . . . . . : 1C-7E-E5-CB-59-75

   DHCP Enabled. . . . . . . . . . . : Yes

   Autoconfiguration Enabled . . . . : Yes

   Link-local IPv6 Address . . . . . : fe80::44f4:559d:e7bd:ea4d%13(Preferred)

   IPv4 Address. . . . . . . . . . . : 192.168.1.65(Preferred)

   Subnet Mask . . . . . . . . . . . : 255.255.255.0

   Lease Obtained. . . . . . . . . . : October-08-14 4:44:46 PM

   Lease Expires . . . . . . . . . . : October-09-14 4:44:46 PM

   Default Gateway . . . . . . . . . : 192.168.1.254

   DHCP Server . . . . . . . . . . . : 192.168.1.254

   DNS Servers . . . . . . . . . . . : 192.168.1.254

                                       75.153.176.9

   NetBIOS over Tcpip. . . . . . . . : Enabled

Ethernet adapter Local Area Connection:

   Connection-specific DNS Suffix  . :

   Description . . . . . . . . . . . : Intel(R) 82567LM-3 Gigabit Network Connec

tion

   Physical Address. . . . . . . . . : 1C-6F-65-04-DD-6F

   DHCP Enabled. . . . . . . . . . . : No

   Autoconfiguration Enabled . . . . : Yes

   Link-local IPv6 Address . . . . . : fe80::847f:d4a:2173:b499%10(Preferred)

   IPv4 Address. . . . . . . . . . . : 142.149.65.68(Preferred)

   Subnet Mask . . . . . . . . . . . : 255.255.255.240

   Default Gateway . . . . . . . . . : 142.149.65.65

   DHCPv6 IAID . . . . . . . . . . . : 236744549

   DHCPv6 Client DUID. . . . . . . . : 00-01-00-01-14-5F-63-C6-1C-6F-65-04-DD-6F

   DNS Servers . . . . . . . . . . . : 142.149.31.21

                                       142.149.31.22

   NetBIOS over Tcpip. . . . . . . . : Enabled

Tunnel adapter isatap.telus:

   Media State . . . . . . . . . . . : Media disconnected

   Connection-specific DNS Suffix  . : telus

   Description . . . . . . . . . . . : Microsoft ISATAP Adapter

   Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0

   DHCP Enabled. . . . . . . . . . . : No

   Autoconfiguration Enabled . . . . : Yes

Tunnel adapter 6TO4 Adapter:

   Connection-specific DNS Suffix  . :

   Description . . . . . . . . . . . : Microsoft 6to4 Adapter

   Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0

   DHCP Enabled. . . . . . . . . . . : No

   Autoconfiguration Enabled . . . . : Yes

   IPv6 Address. . . . . . . . . . . : 2002:8e95:4144::8e95:4144(Preferred)

   Default Gateway . . . . . . . . . :

   DNS Servers . . . . . . . . . . . : 142.149.31.21

                                       142.149.31.22

   NetBIOS over Tcpip. . . . . . . . : Disabled

Tunnel adapter Teredo Tunneling Pseudo-Interface:

   Connection-specific DNS Suffix  . :

   Description . . . . . . . . . . . : Teredo Tunneling Pseudo-Interface

   Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0

   DHCP Enabled. . . . . . . . . . . : No

   Autoconfiguration Enabled . . . . : Yes

   IPv6 Address. . . . . . . . . . . : 2001:0:5ef5:79fb:3ced:21fd:3f57:febe(Pref

erred)

   Link-local IPv6 Address . . . . . : fe80::3ced:21fd:3f57:febe%12(Preferred)

   Default Gateway . . . . . . . . . :

   NetBIOS over Tcpip. . . . . . . . : Disabled

Tunnel adapter isatap.{E1CD395E-5E14-4E42-9269-0B9DA0D8A920}:

   Media State . . . . . . . . . . . : Media disconnected

   Connection-specific DNS Suffix  . :

   Description . . . . . . . . . . . : Microsoft ISATAP Adapter #2

   Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0

   DHCP Enabled. . . . . . . . . . . : No

   Autoconfiguration Enabled . . . . : Yes

Windows for home | Previous Windows versions | Internet and connectivity

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  1. Anonymous
    2014-10-10T19:52:41+00:00

    Your entries look OK to me.

    How are you trying to access these devices?  If you are accessing them by Name, then you may find that your machine is using the DNS server associated with your wireless interface to try to resolve names that are on your wired interface.  If that DNS server returns "not found", then everything might stop there.  My first step would be to try a "tracert" using an IP address (not DNS name) to an IP address on your wired interface and look at the responses to see if the packets are going out the correct NIC.  If they are, then your routing table changes are correct.  For example:

        tracert -d  142.149.31.21

    should successfully trace to the DNS server on your wired connection.

    If the above works, you might then try the "nslookup" command for a target machine to see if the proper IP address is returned

    If the DNS server is your problem, you may need to access your wired-interface devices by IP address or add entries for these devices into your HOSTS file/table.

    HTH,

      JW

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  2. Anonymous
    2014-10-09T20:13:04+00:00

    Thank you for the reply, I used these entries but still having trouble. Im not sure if these are right.

                     Route –p add 142.149.0.0 mask 255.255.0.0 142.149.65.65

    Route –p add 204.104.135.70 mask 255.255.255.255 142.149.65.65

    Route –p add 204.104.135.69 mask 255.255.255.255 142.149.65.65

    Route –p add 204.104.135.65 mask 255.255.255.255 142.149.65.65

    Route –p add 199.214.218.171 mask 255.255.255.255 142.149.65.65

    Route –p add 139.142.157.251 mask 255.255.255.255 142.149.65.65

    Route –p add 139.142.31.90 mask 255.255.255.255 142.149.65.65

    Route –p add 216.168.147.143 mask 255.255.255.255 142.149.65.65

    Route –p add 142.229.229.82 mask 255.255.255.255 142.149.65.65

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  3. Anonymous
    2014-10-09T19:42:10+00:00

    Your routing table says it all.

    In general, your routing table says that:

    1. any IP address in the range 192.168.1.xxx goes out the Wireless interface
    2. any IP address in the range 142.149.65.65-78 goes out the Wired interface.
    3. any other IP address (except 240.x.x.x and 127.0.0.1) goes out the Default Gateway.

    You have two default gateways listed: 142.149.65.65 (wired) and 192.168.1.254 (wireless).  They are otherwise equivalent, but the wireless gateway has the lower "Metric" number, so that interface will always be preferred over the wired interface so long as it is enabled.  Your wired interface should work fine for the IP range listed above in 2) but if your wired network is bigger and has other subnets that work through the 142.149.65.65 gateway, then you will need to add these subnets to the router table, specifying that these subnets should use the 142.149.65.65 gateway...  otherwise all of that traffic will exit out your wireless interface and not go where you want.  The computer has no way of knowing (nor do I, for that matter) which IP addresses are local to your wired interface vs wireless interface otherwise.

    You obviously know how to use the "route print" command.  You need to add routes using the

        route  add

    command.

      < http://technet.microsoft.com/en-us/library/cc757323(v=ws.10).aspx >

    HTH,

      JW

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